Testing Algorithm

This test includes a charge for application of the first probe
set (2 FISH probes) and professional interpretation of results.
Additional charges will be incurred for all reflex probes
performed. Analysis charges will be incurred based on the number of
cells analyzed per probe set. If no cells are available for
analysis, no analysis charges will be incurred.

1. Optimal timing for specimen collection is during 14 to 18
weeks of gestation, but specimens collected at other weeks of
gestation are also accepted. Provide gestational age at the time of
amniocentesis.

2. Discard the first 2 mL of amniotic fluid.

Additional Information:

1. Place the tubes in a Styrofoam container (T329).

2. Fill remaining space with packing material.

3. Unavoidably, about 1% to 2% of mailed-in specimens are not
viable.

4. Bloody specimens are undesirable.

5. If the specimen does not grow in culture, you will be
notified within 7 days of receipt.

6. Results will be reported and also telephoned or faxed, if
requested.

Reference Values

Day(s) and Time(s) Performed

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test was developed using an analyte specific reagent. Its
performance characteristics were determined by Mayo Clinic in a
manner consistent with CLIA requirements. This test has not been
cleared or approved by the U.S. Food and Drug Administration.